Abstract
The indole nucleus is one of the most important ring systems for pharmaceutical development.
Various natural products of new molecular structures with diverse biological activities
have been reported from marine flora and fauna, thus ensuring motivation in the search for newer
natural products. The unique structural features of triindole containing three indole rings and impressive
biological activities make these alkaloids an attractive target for drug discovery. This minireview
highlights the significance of various strategic innovations towards these structurally unique
and simplest alkaloids of marine origin (i.e., pseudellone C, metagenetriindole A, araiosamine and
bengacarboline) and highlights the isolation, structure, synthesis, biosynthesis and biological activities
covering literature till 2023.
Graphical Abstract
[4]
Mann, J. Alkaloids. In: Natural Products: Their Chemistry and Biological Significance; Mann, J.; Davidson, R.S.; Hobbs, J.B.; Banthorpe, D.V.; Harborne, J.B., Eds.; Longman, 1994, pp. 389-446.
[11]
Praveen, P.; Parmeswaran, P.S.; Majik, M.S. Bis(indolyl)methane alkaloids: Isolation, bioactivity, and syntheses. Synthesis, 2012, 47(13), 1827-1837.
[25]
Dewick, P.M. Medicinal Natural Products. A Biosynthetic Approach, 2nd ed; John Wiley & Sons Ltd.: Chichester, New York, 2002.
[30]
Hesse, M. Alkaloids, Nature’s Curse or Blessing; Wiley-VCH: Weinheim, Germany, 2002, p. 413.
[46]
Pouilhès, A.; Langlois, Y.; Chiaroni, A. First synthesis of marine alkaloid (±)-bengacarboline. Synlett, 2003, 10, 1488-1490.
[49]
Annie, P.; Cyrille, K.; Yves, L.; Jean-Pierre, B.; Stéphane, V.; Jean-Philippe, A.; Jean-Marc, B.; Anna, K.; Christian, B. Synthesis and biological evaluation of bengacarboline derivatives. Bioorg. Med. Chem. Lett., 2008, 18, 1212-1216.